天津医药 ›› 2018, Vol. 46 ›› Issue (2): 118-121.doi: 10.11958/20170998

• 细胞与分子生物学 • 上一篇    下一篇

DC-GPC3联合CIK 细胞的体外抗肝癌作用

韩秋青1 , 姜锦2 , 王玉亮3,4△   

  1. 1 天津市宁河区苗庄镇卫生院 (邮编 301507); 2 天津市第一中心医院口腔科; 3 天津医科大学第二医院检验科; 4 天津市泌尿 外科研究所
  • 收稿日期:2017-09-25 修回日期:2017-11-03 出版日期:2018-02-15 发布日期:2018-02-15
  • 通讯作者: 韩秋青 E-mail:hanqiuqing@163.com
  • 基金资助:
    国家自然科学基金资助项目;天津市卫生行业重点攻关项目

Antitumor effects of DC-GPC3 cocultured with CIK on hepatocellular carcinoma in vitro

HAN Qiu-qing1 , JIANG Jin2 , WANG Yu-liang3,4△   

  • Received:2017-09-25 Revised:2017-11-03 Published:2018-02-15 Online:2018-02-15

摘要: 摘要: 目的 探讨磷脂酰肌醇蛋白聚糖-3 (GPC3) 基因转染的树突状细胞 (DC-GPC3) 与细胞因子诱导杀伤细胞(CIK) 共培养 (DCIK-GPC3) 后, 对 CIK 的生物活性及体外抗肝癌细胞作用。方法 流式细胞术检测 DCIK-GPC3、 DC-CIK 及 CIK 各组效应细胞免疫表型, MTT 法检测各组效应细胞培养上清液中白细胞介素 (IL) -2 生物活性, 酶联免疫吸附试验 (ELISA) 检测细胞培养上清液中 IL-2、 干扰素 γ (IFN-γ) 浓度。乳酸脱氢酶释放实验分别检测各组效应细胞对肝癌 HepG2 细胞的细胞毒活性。结果 DCIK-GPC3 表面高表达 CD3+ CD8+ 和 CD3+ CD56+ 双阳性细胞, 与 DCIK 及 CIK 比较差异有统计学意义 (P<0.05); CIK、 DCIK、 DCIK-GPC3 培养上清液中 IL-2 生物活性、 浓度以及 IFN-γ 浓度均依次升高, 组间多重比较差异有统计学意义 (P<0.05); 在 20∶1 及 50 ∶1 效靶比, CIK、 DCIK、 DCIK- GPC3 对 HepG2 细胞的细胞毒活性依次升高, 组间多重比较差异均有统计学意义 (P<0.05)。结论 CIK 与 DC- GPC3共培养可获得更强的体外杀伤肝癌细胞活性, 为DCIK-GPC3用于临床免疫治疗提供了理论和实验依据。

关键词: 关键词: 磷脂酰肌醇蛋白聚糖类, 树突细胞, 细胞因子类, 肝肿瘤, 白细胞介素 2

Abstract: Abstract: Objective To investigate biological activity and antitumor effects of phosphatidylinositol-3 (GPC3) gene transfected dendritic cells (DC, DC-GPC3) co-cultured with cytokine induced killer cells (CIK) on hepatocellular carcinoma (HCC). Methods The phenotypes of effector cells were analyzed by flow cytometry. Levels of interleukin (IL) - 2 and interferon (IFN)–γ were determined by MTT colorimetry and enzyme-linked immunosorbent assay, respectively. The cytotoxic activity against hepatocarcinoma cells (HepG2) was measured by lactate dehydrogenase release. Results The proportions of CD3+ CD8+ and CD3+ CD56+ double-positive cells were significantly elevated in the DCIK-GPC3 compared with the DCIK and CIK (P<0.05). Compared with the DCIK and CIK, the DCIK-GPC3 showed significantly higher levels of secreted IL-2 and IFN-γ in the supernatants (P<0.05). The antitumor effect of DCIK-GPC3 against HepG2 was the highest than that of DCIK and CIK at an effector-target ratio ranging from 20∶1 to 50 ∶1 (P<0.05). Conclusion DCIK-GPC3 can enhance the cytotoxic activity against hepatocarcinoma cells in vitro. This study provides a theoretical and experimental basis for clinical immunotherapy using DCIK-GPC3.

Key words: Key words: glypican, dendritic cells, cytokines, liver neoplasms, interleukin-2